On December 5, 2019 at 15:23, crosen said...
AFAIK, the Harmony hub doesn’t have built in ZigBee or Zwave, so pretty much any solution will require another box (unless a WiFi product like TP-Link Kasa is viable.)
If the user has a Logitech hub and the Caseta bridge, the Caseta switches/dimmers will work. That's all they need if they want to use the Harmony app. If they want a hand-held remote, they will need that but otherwise, that's all they need. The Harmony Hub operates over IP as well as IR.